Hydrogenic and methanogenic fermentation of birch and conifer pulps

Nissilä, Marika E.; Li, Ya-Chieh; Wu, Shu-Yii; Lin, Chiu‐Yue; Puhakka, Jaakko A.

doi:10.1016/j.apenergy.2012.06.015

Cited by 37 publications

(14 citation statements)

References 54 publications

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“…Acinetobacter contains a number of human pathogens (Bergogne-Bérézin and Towner, 1996). Band X belonged to Ruminofilibacter xylanolyticum, which is a rumen bacterium and related to the degradation of xylan (Nissilä et al, 2012). The composting of the mixture of PM and CM increased the quantity of DGGE bands, which were ascribed to the Bacteroidetes family and reduced the quantity of DGGE bands affiliated with the Proteobacteria and Firmicutes families.…”

Section: Analysis Of 16s Rdna Sequencesmentioning

confidence: 99%

Comparison of bacterial community structure and dynamics during the thermophilic composting of different types of solid wastes: anaerobic digestion residue, pig manure and chicken manure

Song

Xuan

et al. 2014

Microbial Biotechnology

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This study investigated the impact of composting substrate types on the bacterial community structure and dynamics during composting processes. To this end, pig manure (PM), chicken manure (CM), a mixture of PM and CM (PM + CM), and a mixture of PM, CM and anaerobic digestion residue (ADR) (PM + CM + ADR) were selected for thermophilic composting. The bacterial community structure and dynamics during the composting process were detected and analysed by polymerase chain reaction–denaturing gradient gel electrophoresis (DGGE) coupled with a statistic analysis. The physical-chemical analyses indicated that compared to single-material composting (PM, CM), co-composting (PM + CM, PM + CM + ADR) could promote the degradation of organic matter and strengthen the ability of conserving nitrogen. A DGGE profile and statistical analysis demonstrated that co-composting, especially PM + CM + ADR, could improve the bacterial community structure and functional diversity, even in the thermophilic stage. Therefore, co-composting could weaken the screening effect of high temperature on bacterial communities. Dominant sequencing analyses indicated a dramatic shift in the dominant bacterial communities from single-material composting to co-composting. Notably, compared with PM, PM + CM increased the quantity of xylan-degrading bacteria and reduced the quantity of human pathogens.

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Section: Analysis Of 16s Rdna Sequencesmentioning

confidence: 99%

Comparison of bacterial community structure and dynamics during the thermophilic composting of different types of solid wastes: anaerobic digestion residue, pig manure and chicken manure

Song

Xuan

et al. 2014

Microbial Biotechnology

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“…Regarding the cellulose-degrading population, changes in the relative abundance of the two OTUs 14124 and 342612, associated with known cellulolytic bacteria ( i.e ., members of Cellulosilyticum [12] and Ruminococcus [21]), mirrored the changes in cellulase (CMCase, Avicelase, and β -glucosidase) activities. Regarding the xylan-degrading population, changes in the relative abundance of OTU 572010, associated with known xylanolytic bacteria ( i.e ., members of Bacteroides [29]), mirrored the changes in cell-bound xylanase activities, whereas changes in the 4 other OTUs (544105, 768947, 14124, and 342612) associated with known xylanolytic bacteria ( i.e ., members of Ruminofilibacter [30], Prevotella [25], Cellulosilyticum [12], and Ruminococcus [21]) mirrored changes in free xylanase activities. Regarding the aromatic-degrading population, changes in the relative abundance of OTU 625556 mirrored those in manganese peroxidase (MnP) activity.…”

Section: Resultsmentioning

confidence: 99%

Pretreatment of Lignocellulosic Biomass with Cattle Rumen Fluid for Methane Production: Fate of Added Rumen Microbes and Indigenous Microbes of Methane Seed Sludge

et al. 2019

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The pretreatment of lignocellulosic substrates with cattle rumen fluid was successfully developed to increase methane production. In the present study, a 16S rRNA gene-targeted amplicon sequencing approach using the MiSeq platform was applied to elucidate the effects of the rumen fluid treatment on the microbial community structure in laboratory-scale batch methane fermenters. Methane production in fermenters fed rumen fluid-treated rapeseed (2,077.3 mL CH4 reactor−1 for a 6-h treatment) was markedly higher than that in fermenters fed untreated rapeseed (1,325.8 mL CH4 reactor−1). Microbial community profiling showed that the relative abundance of known lignocellulose-degrading bacteria corresponded to lignocellulose-degrading enzymatic activities. Some dominant indigenous cellulolytic and hemicellulolytic bacteria in seed sludge (e.g., Cellulosilyticum lentocellum and Ruminococcus flavefaciens) and rumen fluid (e.g., Butyrivibrio fibrisolvens and Prevotella ruminicola) became undetectable or markedly decreased in abundance in the fermenters fed rumen fluid-treated rapeseed, whereas some bacteria derived from seed sludge (e.g., Ruminofilibacter xylanolyticum) and rumen fluid (e.g., R. albus) remained detectable until the completion of methane production. Thus, several lignocellulose-degrading bacteria associated with rumen fluid proliferated in the fermenters, and may play an important role in the degradation of lignocellulosic compounds in the fermenter.

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“…This genus has been reported to be a rumen bacterium capable of digesting xylan . It has also been detected in a biogas plant fed with maize silage, green rye and liquid manure , as well as in birch and conifer pulp fermentations (Nissila et al, 2012). More recently, Ruminofilibacter, a genus from the family of Marilinabiaceae, has also been detected in anaerobic biogas plants supplemented with maize silage as the main substrate (Wojcieszak et al, 2017).…”

Section: Bacterial Community Analysis Using Miseqmentioning

confidence: 99%

“…More recently, Ruminofilibacter, a genus from the family of Marilinabiaceae, has also been detected in anaerobic biogas plants supplemented with maize silage as the main substrate (Wojcieszak et al, 2017). It is interesting to note that this genus appeared only after 42 days of fermentation in an in vitro system (Nissila et al, 2012), suggesting that this genus was a minor member of the bacterial community and required a long enrichment period. This also reflects the outcome of our study, although as only the OI and SE5 were sequenced it is not clear how long it took before this genus dominated the MS enrichments.…”

Section: Bacterial Community Analysis Using Miseqmentioning

confidence: 99%

Assessing rumen microbial composition and fibre attachment in dairy cows

Vaidya¹

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Other natural sources 199 (104-297) Other land sources 185 (99-272) Freshwaters 122 (60-180) Geological (onshore) 40 (30-56) Wild animals 10 (5-15) Termites 9 (3-15) Wildfires 3 (1-5) Permafrost soils (direct) 1 (0-1) Oceanic sources 14 (5-25) Geological (offshore) 12 (5-20) Total anthropogenic sources Agriculture and waste 195 (178-206) Enteric fermentation and manure 106 (97-111) Landfills and waste 59 (52-63) Rice cultivation 30 (24-36) Fossil fuels 121 (114-133) Coal mining 41 (26-50) Gas, oil, and industry 79 (69-88) Biomass and biofuel burning 30 (27-35)

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Hydrogenic and methanogenic fermentation of birch and conifer pulps

Cited by 37 publications

References 54 publications

Comparison of bacterial community structure and dynamics during the thermophilic composting of different types of solid wastes: anaerobic digestion residue, pig manure and chicken manure

Comparison of bacterial community structure and dynamics during the thermophilic composting of different types of solid wastes: anaerobic digestion residue, pig manure and chicken manure

Pretreatment of Lignocellulosic Biomass with Cattle Rumen Fluid for Methane Production: Fate of Added Rumen Microbes and Indigenous Microbes of Methane Seed Sludge

Assessing rumen microbial composition and fibre attachment in dairy cows

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